Connection processing method in wireless communication system, wireless base station, and wireless terminal

• US 8,705,465 B2
• Filed: 10/07/2010
• Issued: 04/22/2014
• Est. Priority Date: 04/28/2008
• Status: Active Grant

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: Tajima, Yoshiharu, Obuchi, Kazuhisa, Tanaka, Yoshinori, Kawasaki, Yoshihiro, Ohta, Yoshiaki, Sugiyama, Katsumasa
• Primary Examiner(s): Phan, Man
• Assistant Examiner(s): Kaur, Pamit
• Application Number:
  US12/900,117
• Publication Number:
  US 20110019633A1
• Time in Patent Office: 1,293 Days
• Field of Search: 370/328, 370/329, 370/342
• US Class Current: 370/329
• CPC Class Codes: H04W 76/11 Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/18 Management of setup rejection or failure

Abstract

In a wireless communication system, a wireless base station, if rejecting a connection to a wireless terminal that makes a connection request in accordance with a first connection processing, controls to adopt a second connection processing different from the first connection processing in response to a subsequent connection request by the wireless terminal.

Claims

1. A connection processing method in a wireless communication system including wireless terminals and a wireless base station, the communication processing method comprising:

at the wireless base station, if rejecting a connection from a wireless terminal, that makes a connection request in accordance with a first connection processing, in the case of not conflicting with other wireless terminals or in the case of having resolved conflict with other wireless terminals, controlling to adopt a second connection processing different from the first connection processing in response to a subsequent connection request by the wireless terminal, the connection request in the first connection processing including information that may conflict with a connection request by another wireless terminal, the connection request in the second connection processing including individual information allocated to the wireless terminal in the case of the rejecting, the individual information not conflicting with the connection request by the another wireless terminal, wherein

the controlling comprises;

storing an identifier allocated to the wireless terminal and the individual information, the individual information being associated with the identifier; and

communicating with the wireless terminal using the identifier when a connection is established with the wireless terminal in accordance with the second connection processing.

2. The connection processing method according to claim 1, wherein

the controlling comprises notifying the wireless terminal of information indicating that the second connection processing is available, and

the wireless terminal executes the second connection processing using the notified information.

3. The connection processing method according to claim 1, wherein

the controlling comprises notifying the wireless terminal of a term of validity of the individual information, and

the wireless terminal executes the second connection processing using the individual information only during the term of validity.

4. The connection processing method according to claim 1, wherein the controlling comprises in the case of the rejecting, allocating, to the wireless terminal, a wireless resource and a transmission grant to be used for a connection request in the second connection processing.

5. The connection processing method according to claim 1, wherein the controlling comprises limiting execution of the second connection processing by the wireless terminal to a certain execution count.

6. A wireless base station in a wireless communication system including wireless terminals and the wireless base station, the wireless base station comprising:

a control section that, if rejecting a connection from a wireless terminal, that makes a connection request in accordance with a first connection processing, in the case of not conflicting with other wireless terminals or in the case of having resolved conflict with other wireless terminals, controls to adopt a second connection processing different from the first connection processing in response to a subsequent connection request by the wireless terminal, the connection request in the first connection processing including information that may conflict with a connection request by another wireless terminal, wherein

the control section;

in the case of the rejecting, allocates, to the wireless terminal, individual information used by the wireless terminal for the connection request in the second connection processing, the individual information not conflicting with the connection request by the another wireless terminal;

stores an identifier allocated to the wireless terminal and the individual information, the individual information being associated with the identifier; and

controls a communication with the wireless terminal using the identifier when a connection is established with the wireless terminal in accordance with the second connection processing.

7. The wireless base station according to claim 6, wherein the control section notifies the wireless terminal of information indicating that the second connection processing is available.

8. The wireless base station according to claim 6, wherein in the case of the rejecting, the control section allocates, to the wireless terminal, a wireless resource and a transmission grant to be used for a connection request in the second connection processing.

9. A wireless terminal in a wireless communication system including wireless terminals and a wireless base station, the wireless terminal comprising:

a control section that, if a connection is rejected by the wireless base station for a connection request in accordance with a first connection processing in the case of not conflicting with other wireless terminals or in the case of having resolved conflict with other wireless terminals, is controlled by the wireless base station to apply a second connection processing different from the first connection processing upon making a subsequent connection request to the wireless base station, wherein

the control section;

makes the connection request in the first connection processing using information that may conflict with a connection request by another wireless terminal, and makes the connection request in the second connection processing using individual information allocated to the wireless terminal in the case of the being rejected, the individual information not conflicting with the connection request by the another wireless terminal;

stores an identifier allocated by the wireless base station and the individual information, the individual information being associated with the identifier; and

communicates with the wireless base station using the identifier when a connection is established with the wireless base station in accordance with the second connection processing.

10. The wireless terminal according to claim 9, wherein the control section makes a connection request in the second connection processing based on a wireless resource and a transmission grant allocated, in the case of the being rejected, by the wireless base station to be used for a connection request in the second connection processing.